Shim



SHIM.

APPLICATION FILED OCT. 23, |916.

Patented July 25, 1922.

- SMTP-1S JEFFERsoN H. Axiivsor LEwIsTowN, iuoiv'iA'nA.k

4Paraivr ors-ica,

sHIMQ- T o all whom it may concern.'

`Be it known that I, Jnrrnisoiv HALnR'r AKINS, a citizen of the United States, residing atlLewistown, in the county ofFergus and State of Montana, have invented certain new and useful Improvements in Shims,

f n of which the following isA a specification.

. The invention has `for an object-to effect an improvement in the devices for ysecuring demountable rims for pneumatic and other tires upon awheel, and'relatesparticularly to the well known form ofconstruction in which Athe rim is held inplace by a number of removablewedges y, (sometimes known as clamping lugs?) inserted between-the demountable Vrim and the felly, in opposition vto inclined4 .lugs -or other elementsoarried permanently on :the wheel, the ymovable wedges:j being forced into and secured'` in Aplace, by meansvof bolts and nuts. f l.

devices,y which has now In, he usefof yhese .becomequite general, it is found that through` corrosionk and-wear the wedge eleT .ments fail togefngage tightly between the demountable rim and the felly band when the tightening bolts and nuts are screwed as f-ar as they can be. This is usually due to the fact that the keeperliiange of the wedgekbecomes engaged against the side of the felly ybefore the wedge can be forced inwardly a sufiicient distance between thedemountable rim and felly.V Thewedge wouldusually be large enough, if iticould be moved inward further,but yon account-of the requirement insuch devices, it is not practicable to give the wedge, ,no matter what its size, `the necessary range of'movement to compensate for wear and corrosion. The substitution vof `new wedges will not in eachv case remedy thefaiilt, as erosion of the permanent lugs -on the felly maybe such that new remov- =able wedges will not serve to .remedy `the fault. `also expensive, and the provision of larger sizes ofy .Wedges to be used after smaller ones `have become ineffective .also involves a considerable expense and a complication iniise The substitution of new wedges lis that would be extremely undesirable in the I have therefore provided a .new article of manufacture which can be produced very cheaply from stock sheet-material, adapted to be used with any of the various yforms of wedges used in securingdemountable rims in place, without requiring ganyg change in structural form of the wedge or wheel parts,

Specification of Letters Patent, y Patented July 25, 1922.. j Application mea october 23, i916. serial No. 127,282.v l i and `permitting lthe use of the fastening devices alreadyprovided. a ,n a f 4 y Additional objects, advantages and fea'- tures of invention ,are involved in my de,- viceas will appear froml the following de-y scription rand,drawingsfiyn which, I 1

Figure 1 is 'a fragmentary cross sectional device,

Fig 5,y is

l a detailof awedge. Y Y

.l There il'sfillustrated a portion'pof la wheel including theffellyl 10' carried. by spokes in the usual manner, jas ';at'f1l', vtlfijefelly having a, suitable' metal band '12 therearound, and being vprovided withaniimber of'bolts 13,

the yheads of which v serve to hold, permanently, upon .thefwheel inner wedge ele@ ments 14," the endsfiof ,the y.bolts projecting at the opposite side 0f the felly for'engage- Vmentfby vthe nuts 15 Vof the removable v i wedges 16, and havingwearmplates v1O"thfere on. The wedges 1 4 zand 16 are? suitably shaped to engage over the outer side of the band-12'beneath thev demountable rim 17, upon whichatire 18 -of any kind may be carried.` Thev.felly`band, Trim, yand wedge Aconstruction may be off anywell known construction yof whichthere are yseveral forms. The wedge yordinarily includes a" keeper flange 119,.- extending inwardlyy besidel the felly when the Wedgeisengagedunder the `rim 17, the rnutsl'ordinarilyV having a neck portion 29 extending through the'keep'er 19, the neck having a"v lateral flange 21 at the in- ,ner l. end byfwhich 'itsf casual` disengagement from 4the keeper is prevented', and by which unscrewing of the 'nutwill draw ythe wedge outwardlyy yfrom beneath the rim 17, y,The nuti's loosely connected to the keeper, so that when the nutisunscrewed a'short distance e the wedge may be readily turned inwardly `on thewheel to lie out ofthe path ofthe ,rim 17 aslwithdrawn.' HThejal'ierture inthe keeper 19 throughwhich the nutis engaged is ordinarily yslightly elongated, so that after fthewedge :hasfbeen' ydrawn 'ontwardly'V a dis- Y tance tS- cuter part. may be forced., i11- wardly, .permitting the :rim to readily clear l"it .when lvs'fithdrawn"`later allygfroin the I wheel.

" My invention consists of'a plate vof sheet snugly over the rim 12, andan upper filler,

vergent faces of the Wedge, and the inner face of the keeper flange 19, having an elongated opening` therein to register with the opening through the'keeper 19. The plate consists of the keeper portion 22, adapted to lie againstA the side of the'felly beneath ithe keeper 19, a lower filler portion-28 extended at right angles therefromand adapted to lie portion 24, bent inwardly over the portion 23.- at an acute angle, and curved rgradually upward so that it kwill liesnugly upon the upper side of the wedge when the latter is inserted between the two filler portions. The curving of the upper filler portion 24: is not essential, ho,wever, nor is 4it necessary for it to conform exactly to thev formv of the Wedge, as the metal is thin enough to adapt itself tothe necessary form when the wedge vis forced linto K i place.y `The aperture 25 in the keeper part of the filler extendsv fully to the angle at .the junction vrof the, keeper portion with the"r lower filler portion 23this aperture being elongated topermit `free removalofthe filler. from under the demoun't-y able r-im at' thesametime ,as the ywedge is disengaged, moving practicallyI as a unit therewith, in practice. v,

In practice, the filler device is made from galvanized iron lsheetmetal of 24 gauge, being stamped out inthe form shown'inF ig. 4C, the endutilizedr toy form the keeperportion 22, being rounded as shown. rThe aperture .25 may be formedat the same time that the blank is cut. After the forming of the blank, the rounded end 4portionis bent into aux. plane at right angles to the central/part ofthe blank, ona line Acoincident with the inner edge of the opening 25, and the opposite end portion of the blankisthen bent inwardly over rthe intermediatel portion Von aline spaced from thejpoin't kof the first ,bending adistance in the neighborhood of three-eighths ofV anvinch ,greater vthan the distance between the inner face of the keeper iiange l9and the inner edge of thewedge 16, this bend being rounded, so. that. the filler device has a minimum thickness at its inner part less y.than that of the wedge. yThe upper'filler element extends outwardly a distance beyond the plane of the keeper portion 22 yof the filler so that there is certain tobe enough in4 this upper ller portion to cover all of the outer side, ofthe wedge 16.

A Inuse, vwhen it is found that wedges fail to secure the demountable rim .in place, a

suitable vnumbervof the filler devices are sepoured, the wedges 16 removed entirely'from the bolts 13 of the wheel, and.` inserted betweenthe Eller portions 23e-24:, with the i opening 25 alined 4with the opening through duced upon the wheel in the same way ordinarily practiced, `andthe filler device and wedge can then be readily manipulated as `one unit, for securing the demountable rim in place.

It will be found that with this filler device, the rim can easilyffbe `secured firmly upon the wheel with a minimum diHiculty, and without -impairing the efficiency of the demountable rim and wheel construc tion or` the fastening devices therefor.

Itis apparent that a desirable article of manufacture is presented, wlhich lmay 'be produced at alow cost andattainingdesirable futility.

What is claimed:

1, An auxiliary for clampingJ lugs ofdemountable rims comprising ar strip ofr vsheet metal having one end portionk provided with a vlongitudinal slot to receive a Vbolt,'the` intermediate portion ofthe strip ,being bent to eXtendA at right angles to said end. portion a distance, theother end portion ,being bent inward over thesaid intermediate portion at l an I,acute angle, and .away Vfrom the ffirst named end portion, and beingfextende'd'bel yond the junction of said intermediateportion yand firstmentioned end portion.

2. vA shim, for detachablewheel rims and their clamping lugs, comprising a stripfof sheet metal bent to form portions arranged at an acute angle toeach other forfiitting aboveand below the .head of alug 'and' between the `same and the base ofia detachable rim and the periphery of the felly of .a wheel, respectively, and. a' portion on Athe shimr to be clamped between the `lug and the side of the felly for the purpose specified.

3.. A shim, for 4detachable wheel rims and their clamping lugs, comprising. a strip of sheetAV metal bent to form portions arranged at anacute angleto eachother foritting above rand belowthe head of a lug and between the same and the base of ,a detachable rim and the periphery of the felly 'ofa wheel', respectively, and a portionvon kthe .shimto lie against the side ofthe felly'and having' a slottherein to fit. around the lug securing bolt for .the purpose specified. 4f, kIn combination with a felloe anda demountable rim and a rim clamp, a tightening clip arranged to be located around .said rim clampand between the felloe and rim.

f5. In. combination with a felloe and afdemountable rim and arim clamp, apliable tightening clip arranged to be located around said rim. clamp and between the felloe and rim.

In testimony whereof Ihave affixed fmyl signature inthe presence yof twowitnesses. y JEFFERSON unirme. 

